Twan van Laarhoven's blog

Date: 2012-02-11
Tags: haskell, rectangles
0 comments
Finding rectangles, part 3: divide and conquerA faster algorithm for finding border rectangles in images.
Date: 2012-02-07
Tags: haskell
4 comments
Search trees without sortingEfficient searches with the help of a semilattice.
Date: 2011-10-12
Tags: haskell, rectangles
6 comments
Finding rectangles, part 2: bordersAn efficient algorithm for finding rectangles in images.
Date: 2011-09-28
Tags: haskell, rectangles
13 comments
Finding rectanglesAn efficient algorithm for finding rectangles in images.
Date: 2011-07-22
3 comments
A small rant on writing academic papersIn which the author vents about working on towards his first publication.
Date: 2011-05-22
Tags: haskell, lens
10 comments
Isomorphism lensesMy new favorite implementation of lenses. It gives you the laws for free
Date: 2011-05-19
Tags: haskell, lens, talks
3 comments
Talk on LensesTalk at the Radboud foundations group, 2011-05-17
Date: 2011-03-19
Tags: blogging
1 comment
Moving to a new websiteNew and improved design, and a new url
Date: 2010-07-13
Tags: haskell
5 comments
More composition operatorsVariations of the trusted (.) operator
Date: 2009-11-09
Tags: haskell
3 comments
Four ways to fold an arrayfoldr and foldl in two ways each
Date: 2009-07-20
Tags: haskell, lens
13 comments
CPS based functional references
Date: 2009-04-25
Tags: haskell
0 comments
Where do I get my non-regular types?
Date: 2009-04-23
Tags: haskell
15 comments
A non-regular data type challenge
Date: 2008-12-10
Tags: haskell, knight-in-n
1 comment
Knight in n, part 4: tensorsHow many ways are there to move a knight on a chessboard from a to b?
Date: 2008-12-04
Tags: haskell, knight-in-n
8 comments
Knight in n, part 3: ringsHow many ways are there to move a knight on a chessboard from a to b?
Date: 2008-12-01
Tags: haskell, knight-in-n
5 comments
Knight in n, part 2: combinatoricsHow many ways are there to move a knight on a chessboard from a to b?
Date: 2008-11-26
Tags: haskell, knight-in-n
2 comments
Knight in n, part 1: movesHow many ways are there to move a knight on a chessboard from a to b?
Date: 2008-11-14
Tags: haskell
2 comments
Arrays without boundsA Haskell array datatype that grows as needed.
Date: 2008-08-15
Tags: haskell
9 comments
A generic merge functionGeneralizing union, intersection and set difference
Date: 2008-07-26
Tags: haskell, puzzle
6 comments
Solving nonogramsSolving 'nonogram' puzzles with Haskell
Date: 2008-01-30
Tags: haskell
5 comments
Simple reflection of expressionsConvert Haskell expressions back into strings
Date: 2007-11-07
Tags: haskell, lens
3 comments
References, Arrows and CategoriesFunctional references as a category
Date: 2007-09-03
Tags: haskell, lens
6 comments
Overloading functional referencesUsing functional references without needing to call 'get'.
Date: 2007-04-16
Tags: haskell
9 comments
Knuth-Morris-Pratt in HaskellFaster substring searching

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